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40 HP pees but still overheat alarm at speed
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<blockquote data-quote="GYPSY400" data-source="post: 499638" data-attributes="member: 8599"><p>Just to rule out the head gasket quick: compression test.. but test with the other plug in, and then out. If the number changes, you know compression is leaking across the cylinders. I found this when I did my 9.9.</p><p></p><p>I'm not saying this is the issue - my first thought would be water pump as mentioned above, then maybe seized thermostat causing a flow restriction ( because it's been sitting).. then check the electrical side of the system. The head gasket, if blown, would be a byproduct of overheating.</p></blockquote><p></p>
[QUOTE="GYPSY400, post: 499638, member: 8599"] Just to rule out the head gasket quick: compression test.. but test with the other plug in, and then out. If the number changes, you know compression is leaking across the cylinders. I found this when I did my 9.9. I'm not saying this is the issue - my first thought would be water pump as mentioned above, then maybe seized thermostat causing a flow restriction ( because it's been sitting).. then check the electrical side of the system. The head gasket, if blown, would be a byproduct of overheating. [/QUOTE]
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40 HP pees but still overheat alarm at speed
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